COLL 499 |
| Feng Gao, Chia-Chi Ho, and Carlos C. Co. Department of Chemical and Materials Engineering, University of Cincinnati, 497 Rhodes Hall, Cincinnati, OH 45221-0012 |
| The phase behavior characteristics of a new class of sugar-based microemulsions that can be used in encapsulation processes and as templates for fabrication of ultrafiltration membranes is reported here for the first time. Water present in traditional microemulsions has been replaced with highly concentrated sugar solutions (70-80 wt%) yielding highly viscous microemulsions containing up to equal volume fractions of oil and sugar. The large and tunable range of temperature over which these one-phase microemulsions can be formed allows for complex processing and selective removal of residual moisture to yield “glassy” microemulsions containing high concentrations of oil. Solid-like microemulsions containing high concentrations of hydrophobic monomers can be polymerized to yield potentially, a one-to-one copy of the original microemulsion template nanostructure. |
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Nanoscience and Nanotechnology
8:30 AM-11:45 AM, Thursday, April 1, 2004 Marriott -- Orange County 5, Oral
Division of Colloid and Surface Chemistry |